I have a 1949 singer and a 1962 wards, they both have bobbins with a sinilar "pointy" piece. Both bobbins fit into a kind of slot and the thread then is naturally coming from the top of the bobbin case. Sometimes I have to jiggle the bobbin case to get it to set right in its place. Also, the needles on both of these machines have a flat side that goes against the lifter bar.
Don't know if this helps but good luck getting it working.